Gain insights into Java 17, cloud and microservices, reactive programming, and top JVM languages. Explore hands-on projects using Scala, Groovy, and Gradle to boost your software development career.

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Groovy

Scala

Java 12

Java 14

Java 16

Java 17

Java 16-copy

Play

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SPA-play

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Java 16-fruits

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This course is meant for Java programmers or aspiring programmers who want to know about the latest Java and JVM technology. Throughout this course, you will get several opportunities to get hands-on experience with various Java concepts. 

This course will help you understand the latest in Java up to version 17; cloud and microservices; build, testing, and web frameworks; reactive programming in Java; and the best JVM languages so you can advance your career in software development. 

Moreover, you will also get to work with Scala, Groovy, and Gradle. The course explains Java concepts in detail and also draws comparisons with its older versions, as well as JVM languages.

The All-in-One Guide to Java Programming

**Java 12** was released in March of 2019.  The main new feature that was released in Java 12 was switch expressions (for example, the preview feature).

**Java 13** was released in September of 2019 and introduced multiline Strings as a preview.

**Java 14** was released in March of 2020 and includes `record`, pattern matching `instanceof`, and text blocks (as preview features).




**Java 15** was released in September of 2020 made text blocks enabled by default as a feature. It also includes sealed classes as a preview feature.

**Java 16** was released in March of 2021 and includes `record` and pattern matching for `instanceof` as included features.

**Java 17** is not yet released at the time of writing. Java 17 is the next LTS (Long Term Service) release of Java.

A preview feature means it must be enabled when starting the Java application at the java command using `--enable-preview`.

## Switch expressions
**Switch expressions** allow you to return a value directly from a switch statement. It’s much more concise. For example, given an enum named `Fruit` and `fruit` is a variable of that enum type:


**Java 15** was released in September of 2020 made text blocks enabled by default as a feature. It also includes sealed classes as a preview feature.

**Java 16** was released in March of 2021 and includes `record` and pattern matching for `instanceof` as included features.

**Java 17** is not yet released at the time of writing. Java 17 is the next LTS (Long Term Service) release of Java.

A preview feature means it must be enabled when starting the Java application at the java command using `--enable-preview`.

# Switch expressions
**Switch expressions** allow you to return a value directly from a switch statement. It’s much more concise. For example, given an enum named `Fruit` and `fruit` is a variable of that enum type:


Learn about the new features released in Java 12-17.

Introduction

Java Syntax and Conventions

Java 7

Idiomatic Java 8: Lambdas, Streams, and Dates

New Date and Time API

Java 8 Miscellaneous

Advantages of Java 9

Java 10 - 17

Java Ecosystem

Maven and JUnit

Utilizing Essential Libraries

Modern Java Concurrency

RxJava

Other JVM Languages

Groovy

Gradle

Spock

Scala

RESTful

Microservices and Clouds

Grails

Spark

Spring Boot

Play Framework

Ratpack

Final Thoughts

Appendix

Java 12 - 17: Features

History